Question

Find the Mean of the following numbers a) 1/2, 3 b) 3/4, 1/3 c) -7/2, 5/4 d) -8/5, 7/9​

Answer 1

Mean value =

Add the numbers / how many numbers

a) 1/2, 3

(1/2 + 3)/2

= (1+6)/4

= 7/4 (ans.)

B) 3/4, 1/3

(3/4 + 1/3)/2

= (9+4)/24

= 13/24 (ans.)

c) -7/2, 5/4

(-7/2 + 5/4)/2

= (-14 + 5)/8

= -9/8 (ans.)

d) -8/5, 7/9

(-8/5 + 7/9)/2

= (-72 + 35)/90

= -47/50 (ans.)